MSN's Vaughn Highfield says he's seen the future of AR in HoloPortal, a room-scale 3D scanner.

The technology, developed by DoubleMe and Ravensbourne, uses eight cameras to generate a live 3D video image that can be fed to an AR headset. Highfield says the HoloPortal's feed is still lower-resolution, as is currently standard throughout the industry. But within a year, the HoloLens team will be able to capture 4K video, and the writer imagines meetings "where you're speaking face-to-face with someone who's on the other side of the world."

It's a pretty interesting technology right now, but also pretty expensive for us (the mortals) and I think even for the developers (DoubleMe and Ravensbourne) who are bringing it here but maybe not for those developers to come to use this tech as I understand it uses the same programs as Unity and similar tools, the hard part will be the 3D scanners for the users when they want to interact with real object inside of the Holoportal

A 3D model scan sent to the doctor say part of your arm. He or she then dawn's an HMD (Hololens maybe?) unit and is able to observe what is causing you pain. Problem found, they then administer the proper procedure to help heal your arm.